The Oakland Athletics have acquired left-handed pitcher Brad Mills from the Brewers in exchange for cash considerations, the clubs have announced.

Mills, 29, is 3-3 with a 7.76 ERA in 15 big-league appearances in parts of four seasons, though he hasn't pitched in the majors since 2012, when he threw five shutout innings in a spot start for the Angels.

And in Triple-A this season, Mills is 4-2 with a 1.56 ERA, 0.92 WHIP and 77 strikeouts in 75 innings in the hitter-friendly Pacific Coast League.